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Applied Physics A

, Volume 82, Issue 3, pp 489–493 | Cite as

Spin-resolved photoelectron spectroscopy of the MgO/Fe(110) system

  • Y.S. Dedkov
  • M. Fonin
  • U. Rüdiger
  • G. Güntherodt
Article

Abstract

The surface structure and electronic properties of ultrathin MgO layers grown on epitaxial Fe(110) films were investigated at room temperature by means of electron diffraction, Auger electron spectroscopy, scanning tunneling microscopy, and spin-resolved photoelectron spectroscopy. The spin polarization at the Fermi level (EF) of the Fe(110) film decreases sharply with increasing thickness of the MgO layer. This behavior arises from the formation of a thin FeO layer at the MgO(111)/Fe(110) interface, as revealed by structural and spectroscopic investigations. The strong attenuation of the intrinsic spin polarization is qualitatively attributed to the scattering of spin-polarized electrons at the unoccupied d-orbitals of Fe2+.

Keywords

Scanning Tunneling Microscopy Spin Polarization Auger Electron Spectroscopy Scanning Tunneling Microscopy Image Valence Band Edge 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Y.S. Dedkov
    • 1
  • M. Fonin
    • 1
    • 2
  • U. Rüdiger
    • 2
  • G. Güntherodt
    • 1
  1. 1.II. Physikalisches InstitutRheinisch-Westfälische Technische Hochschule AachenAachenGermany
  2. 2.Fachbereich PhysikUniversität KonstanzKonstanzGermany

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